Worktable for stamping and embossing machines



WORK TABLE FOR STAMPING AND'EMBOSSING MACHINES Filed Nov. 8, 1944 2Sheets-Sheet l May 27, 1947. R. L. GREENLEAl- WORK TABLE FOR STAMPINGAND EMBOSSING MACHINES Filed Nov. 8. 1944 2 Sheets-Sheet 2 Patented May27, 1947 UNITED STATES 'WORKTABLE FOR STAMPING AND EMBOSSING MACHINESRupert L. Greenleaf, Auburn, Maine Application November 8, 1944, SerialNo. 562,508

4 Claims. 1

This invention relates to a work table for a stamping machine and it isone. object of the invention to provide a table which may be used in astamping machine of conventional formation and serve very effectively asa backing for a tongue, lining, or other portion of a shoe which is tobe stamped with stock numbers, size markings, and other markings.

In a stamping machine of this character the type wheels turn on asleeve, whereas the stock numbers are inserted in a frame or stockattachment and are more subject to wear. When stock numbers become wornthey print lighter than impressions from the wheels and are discardedand new ones applied, thus causing expense by frequent replacements.Therefore, one object of the invention is to provide a table of suchconstruction that it may be vertically adjusted for proper contact ofthe type wheels with a tongue or lining and including a pad which isdisposed under the stock members and independently shiftable verticallyto adjusted position so that as the stock numbers become worn such wearmay be compensated for and the stock numbers clearly printed.

Another object of the invention is to eliminate use of shims for raisingthe forward portion of a fiber pad disposed under the stock numbers andpermit the vertical adjustment desired to be accomplished very easilyand quickly by merely turning an adjusting screw engaging a wedge underthe pad.

Another object of the invention is to provide a table including aremovable fiber pad of such size that its lower portionwill fit in arecess or seat formed in the top of the table, the upper portion of thepad being cut so that it will accommodate a predetermined number oflines of markings.

Another object of the invention is to provide a table of this characterwherein vertical adjustment of the pad is accomplished by means of awedge shifted to adjusted positions by an adjusting screw and yieldablyheld against movement in one direction by a spring so that it will beheld in contact with the adjusting screw.

Another object is to provide a table which is simple in construction,easy to install in a machine of conventional type, and very efficient inuse.

In the accompanying drawings:

Fig. 1 is a side of the improved table.

Fig. 2 is a top plan view of the table.

Fig. 3 is a sectional view taken transversely through the table on theline 3-3 of Fig. 2:.

Fig. 4 is a sectional view on the line 44 of Fig. 2.

Fig. 5 is a top plan view of the table with the vertically shiftablefiber pad removed.

Fig. 6 is a perspective view of the table with 2V the adjustable pad andthe wedge under the pad, removed.

Fig. 7 is a perspective view of the wedge for adjustably supporting thepad.

Fig. 8 is a perspective view of the plate carrying the adjusting screwfor the wedge.

Fig. 9 is a perspective view of the spring for yieldably resistingmovement of the wedge in a direction for raising the pad.

Fig. 10 is a fragmentary view on the line |0.-lfi of Fig. 1.

The improved table constituting the subject matter of this invention isused in a machine for stamping size markings, stock numbers, and othermarkings on tongues, linings, and other portions of a shoe. This tableis mounted in the machine under the printing wheels and frame forcarrying stock numbers and supports the tongue or lining while beingmarked. A portion I of a conventional stamping machine is shown in thedrawings and may be referred to as a mounting for the table. This tablehas a top or body 2 from which extends a depending post 3 located underthe rear end portion of the table midway the width thereof. The post isthreaded for engagement with threads of the internally threaded socket 4of the mounting I and, in order that the post may be secured againstturning after the table has been vertically adjusted to a desiredheight, there has been provided a set screw 5 engaged through an openingformed in the socket 4 and bearing against a flat face 6 formedlongitudinally of the post.

The top 2 of the table is rectangular in top plan and has its rearportion formed with a transversely extending groove 1 forming a seat inwhich is slidably received a wedge 8, the groove or seat having itsbottom extending at an upward incline toward one end of the groove toprovide a cam surface so that the wedge will be shifted upwardly as itis moved in the groove toward the high end of the sloping bottomthereof. The under face of the wedge extends at an angle conforming tothe slope of the bottom of the groove or seat l and its upper surface isin a horizontal plane, and referring to Fig. 3, it will be seen thatwhile shifting of the wedge longitudinally will effect verticaladjustment of the wedge, its upper surface will remain in a horizontalplane. Ends of the groove or seat are closed by plates 9 and I!) whichare secured against side faces of the table top by screws I, the plate18 being formed midway its length with a threaded opening I? toreceivean adjusting screw l3. This screw l3 has its inner end bearing againstthe large end of the wedge 8 and when the screw is turned to move itinwardly. the wedge will be shifted longitudinally in the seat towardthe high end of the sloping bottom and raised during such movement. Aspring l4, formed from a strip of resilient metal, is disposed in theseat with its intermediate portion bearing against plate 9 and its armsl5 projecting inwardly for engagement with the end of the wedge, andthis spring yieldably resists movement of the wedge in a liftingdirection and maintains the wedge in contact with the inner end of theadjusting screw. Therefore, when the screw is turned in a looseningdirection to move it outwardly, the spring will urge the wedge towardsthe screw and move it in a lowering direction.

Between the groove or seat and the rear end of the table top, the upperface of the top forms a ledge l6 upon which a pad I! rests, this padbeing cemented upon the ledge and held against rearward movement by anupstanding flange it formed along the rear edge of the table top. Asecond fiber pad 19 rests on the wedge and is of such width and lengththat it may fit into the groove or seat 1 and be shifted verticallytherein by movement of the wedge. The pad 19 is beveled along itsforward portion, as shown at 20, thus providing the pad with a flatupper face of predetermined width from its rear edge to the rear edge ofthe beveled portion 29 so that the pad may be used as a support andbacking for a tongue orliner upon which a certain numbe of lines ofmarkings are to be printed. By accurate adjustment of the screw i3, thepad i9 may be shifted vertically to dispose the upper surface thereofflush with the upper face of the pad H and all of the lines of markingsprinted upon the tongue or liner will be clear. While the pad 19 hasbeen shown formed separate from pad l1, it will be understood that thesepads may be formed from a single sheet of fiber if desired.

Having thus described the invention, what is claimed is:

1. A work table for a stamping machine comprising a table top formed inspaced relation to its rear edge with a transverse groove constituting aseat and having its bottom sloping upwardly toward one end, platessecured against side faces of said table top and constituting end wallsfor the seat, a wedge of less length than the seat fitting in said seatand having a flat horizontally extending upper face and a sloping underface in fiat contacting engagement with the sloping b tom of the seat,an adjusting screw threaded through an opening in the plate closing thedeep end of the seat and abutting the large end of said wedge forshifting the wedge longitudinally when the screw is turned in adirection to move it inwardly, a spring in the other end of said seatformed from a strip of resilient material having its intermediateportion bearing against the plate closing the shallow end of the seatand its end portions bent to form arms extending inwardly from the plateand engaging the small end of the wedge and urging the wedge toward saidscrew, a flange extending upwardly along the rear edge of the table top,a pad upon the surface of the table top between the rear edge of saidseat and said flange and projecting upwardly above the flange, and apadof the same length and width as the seat resting upon said wedge andshiftable vertically in the seat with the wedge, the second pad havingthe forward portion of its upper surface beveled to provide a flatsurface of predetermined width between the rear edge of the beveledsurface and the rear edge of the pad.

2. A table for a stamping machine comprising a table top having mountingmeans, said table top being formed across its upper surface with atransversely extending groove spaced from the rear edge of the tabletop, the portion of the upper face of the table top between its rearedge and said groove constituting a ledge having a flat horizontalsurface and the portion of the upper face of the table between thegroove and the front edge of the table top extending forwardly at adownward incline, a flange along the rear edge of the table top, saidgroove having its bottom extending at an upward incline toward one end,plates at opposite sides of said table top closing ends of said groove,a wedge in said groove having a sloping under surface resting upon thebottom thereof and being shiftable longitudinally therein, an adjustingscrew threaded through one plate and engaging the large adjacent end ofthe wedge for moving the wedge longitudinally in the groove, a spring inthe other end of the groove engaging the small end of the wedge andyieldably resisting movement of the wedge by the adjusting screw, a padupon said ledge between said flange and the rear edge of said groove, ana pad supported upon said wedge and shiftable vertically with the wedgein the groove when the wedge is shifted longitudinally and movedvertically.

3. A table for a stamping machine comprising a table top formed acrossits upper surface with a transverse groove spaced from the rear edge ofthe table top and having a sloping bottom, end walls for said groove, anadjusting screw threaded through one end wall, a spring in the groovehaving an intermediate portion bearing against the other end wall andend portions spaced inwardly from the last mentioned wall, a wedge insaid groove shiftable longitudinally and moved vertically therein byaction of the sloping bottom and having one end engaging the inner endof the adjusting screw and its other end engaged by the end portions ofsaid spring to yieldably hold the wedge against the inner end of thescrew, and a pad resting on said wedge and shiftable vertically with thewedge.

4. A table for a stamping machine comprising a table top having mountingmeans, said table top being formed across its upper surface with agroove spaced from the rear edge of the table top, a plate removab-lysecured against a side edge face of the table top and constituting aclosure for one end of said groove, the bottom of the groove slopingupwardly toward the other end and forming a cam surface, a wedge in saidgroove restin upon the cam surface and moved vertically thereby of thesloping bottom of the groove when shifted longitudinally in the groove,a screw threaded through said plate and engagin the adjacent end of thewedge for shifting the wedge longitudinally, a spring in the other endof the groove engaging the adjacent end of the wedge and yieldablyresisting movement of the wedge by the screw, and a pad resting uponsaid wedge and shifted vertically thereby when the wedge is movedlongitudinally and shifted vertically.

RUPERT L. GREENLEAF.

REFEREN'JES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 716,071 Lion et a1 Dec. 16, 1902764,096 Williams July 5, 1904 924,990 Holland June 15, 1909 1,059,657Canine Apr. 22, 1913 1,068,063- Kitz July 22, 1913 1,714,895 Stoller May28, 1929 2,342,698 Sand Feb. 29, 1944

